1405454

Appears in sequences

• Number of (n+1)X(4+1) 0..1 arrays with every 2X2 subblock having one or two 1s.at n=4A251322
• Number of (n+1)X(5+1) 0..1 arrays with every 2X2 subblock having one or two 1s.at n=3A251323
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock having one or two 1s.at n=31A251326
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock having one or two 1s.at n=32A251326